'Effect of capitalization on Keccak-256 Output

Why does the capitalization of words change the hash output so significantly in Keccak-256?

Example: Lets use sandy, Sandy

Input 1: Sandy

Output 1: 531e7238b18a2a98325e9378315ae7575250d3a65549eeed760b5128505f28f6

Input 2: sandy

Output 2: c451bebea4e5a4c987cfc8cb94f4824abd60b02348bf081b063d22d9cede0dff

Can anyone let me know why is the Output so different?



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